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/*
* Copyright (C) 2016 Alex Fong Jie Wen <alexfongg@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.ui.util.spinner;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.Spinner;
/**
* Custom spinner which uses a hack to
* always set focus on first item in list
*
*/
public class FocusFirstItemSpinner extends Spinner {
/**
* Spinner is originally designed to set focus on the currently selected item.
* When Spinner is selected to show dropdown, 'performClick()' is called internally.
* 'getSelectedItemPosition()' is then called to obtain the item to focus on.
* We use a toggle to have 'getSelectedItemPosition()' return the 0th index
* for this particular case.
*/
private boolean mToggleFlag = true;
public FocusFirstItemSpinner(Context context, AttributeSet attrs,
int defStyle, int mode) {
super(context, attrs, defStyle, mode);
}
public FocusFirstItemSpinner(Context context, AttributeSet attrs,
int defStyle) {
super(context, attrs, defStyle);
}
public FocusFirstItemSpinner(Context context, AttributeSet attrs) {
super(context, attrs);
}
public FocusFirstItemSpinner(Context context, int mode) {
super(context, mode);
}
public FocusFirstItemSpinner(Context context) {
super(context);
}
@Override
public int getSelectedItemPosition() {
if (!mToggleFlag) {
return 0;
}
return super.getSelectedItemPosition();
}
@Override
public boolean performClick() {
mToggleFlag = false;
boolean result = super.performClick();
mToggleFlag = true;
return result;
}
}
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